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[Bug 1896754] [NEW] Performance degradation for WinXP boot time after b5
From: |
Maskim Bakulin |
Subject: |
[Bug 1896754] [NEW] Performance degradation for WinXP boot time after b55f54bc |
Date: |
Wed, 23 Sep 2020 11:33:35 -0000 |
Public bug reported:
Qemu 5.1 loads Windows XP in TCG mode 5-6 times slower (~2 minutes) than
4.2 (25 seconds), I git bisected it, and it appears that commit
b55f54bc965607c45b5010a107a792ba333ba654 causes this issue. Probably
similar to an older fixed bug
https://bugs.launchpad.net/qemu/+bug/1672383
Command line is trivial: qemu-system-x86_64 -nodefaults -vga std -m
4096M -hda WinXP.qcow2 -monitor stdio -snapshot
** Affects: qemu
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1896754
Title:
Performance degradation for WinXP boot time after b55f54bc
Status in QEMU:
New
Bug description:
Qemu 5.1 loads Windows XP in TCG mode 5-6 times slower (~2 minutes)
than 4.2 (25 seconds), I git bisected it, and it appears that commit
b55f54bc965607c45b5010a107a792ba333ba654 causes this issue. Probably
similar to an older fixed bug
https://bugs.launchpad.net/qemu/+bug/1672383
Command line is trivial: qemu-system-x86_64 -nodefaults -vga std -m
4096M -hda WinXP.qcow2 -monitor stdio -snapshot
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